Perhaps you should try some spelling variations:
hanh dai » hanh tai, hanh dao, vanh dai
thi hang » thi hanh, thi nang, thi hong
te sach » toc sach
dai cuu » dai cua, dai huu
va hanh » van hanh, va thanh, va danh
cam duc » cam xuc, cao duc, pham duc
hieu va » lieu va
ty hang » ly hang, ty xang, thu hang
cuu tre » cua tre, cau tren, cau treo

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ((ty hang) OR (thi hang)) xa hoi. ((hieu va) or (hieu qua)) cam duc va hanh dai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((ty hang) OR (thi hang)) xa hoi. ((hieu va) OR (hieu qua)) cam duc va hanh dai cuu tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((ty hang) OR (thi hang)) xa hoi. ((hieu va) or (hieu qua)) cam duc va hanh dai cuu tre*".